Answer:
b1 = (2A/ h) - b2
Step-by-step explanation:
A = 1/2 h(b1 + b2)
b1 + b2 = A / 1/2h = 2A/h
b1 = (2A/ h) - b2
Answer:
x = 9
Step-by-step explanation:
20x + 20 = 200
-20 -20
20x. = 180
x = 9
Answer:
One cup of coffee is $3.25
Step-by-step explanation:
Create a system of equations where c is the cost of a cup of coffee and d is the cost of a donut
2c + 4d = 10.5
c + 5d = 8.25
Solve by elimination by multiplying the top equation by -5 and the bottom equation by 4
-10c - 20d = -52.5
4c + 20d = 33
Add them together and solve for c
-6c = -19.5
c = 3.25
So, a cup of coffee is $3.25
c is is the answer how much you going to have to graphic
